I think maniac is one of the staff in the actual company running this site. I PM'ed him a long time ago, but I don't have the conversation anymore.

As for anyone you remember, I think gordo and I are the only ones. JayT hasn't come on since May. SyntaX hasn't come on since July. DANIEL2488 has posted a few times in September, but he hasn't been on since September *7. So yeah, it's just me, gordo, and the one-post users that come and go.